In cases where the scanout buffer is provided as a texture (e.g. Virgl)
we need to check to see if it has a linear memory layout or not. If
it doesn't have a linear layout, then blitting it onto the texture
associated with the display surface (which already has a linear layout)
seems to ensure that there is no corruption seen regardless of which
encoder or decoder is used.
Cc: Gerd Hoffmann <kra...@redhat.com>
Cc: Marc-André Lureau <marcandre.lur...@redhat.com>
Cc: Dmitry Osipenko <dmitry.osipe...@collabora.com>
Cc: Frediano Ziglio <fredd...@gmail.com>
Cc: Dongwon Kim <dongwon....@intel.com>
Signed-off-by: Vivek Kasireddy <vivek.kasire...@intel.com>
---
include/ui/spice-display.h | 3 ++
ui/spice-display.c | 67 +++++++++++++++++++++++++++++++++++---
2 files changed, 65 insertions(+), 5 deletions(-)
diff --git a/include/ui/spice-display.h b/include/ui/spice-display.h
index f4922dd74b..d087d7198a 100644
--- a/include/ui/spice-display.h
+++ b/include/ui/spice-display.h
@@ -132,6 +132,9 @@ struct SimpleSpiceDisplay {
egl_fb guest_fb;
egl_fb blit_fb;
egl_fb cursor_fb;
+ bool backing_y_0_top;
+ bool blit_scanout_texture;
+ bool new_scanout_texture;
bool have_hot;
#endif
};
diff --git a/ui/spice-display.c b/ui/spice-display.c
index 047d453a0b..3fa15d6981 100644
--- a/ui/spice-display.c
+++ b/ui/spice-display.c
@@ -1035,20 +1035,34 @@ static void
qemu_spice_gl_scanout_texture(DisplayChangeListener *dcl,
{
SimpleSpiceDisplay *ssd = container_of(dcl, SimpleSpiceDisplay, dcl);
EGLint stride = 0, fourcc = 0;
+ EGLuint64KHR modifier = 0;
int fd = -1;
assert(tex_id);
- fd = egl_get_fd_for_texture(tex_id, &stride, &fourcc, NULL);
+
+ fd = egl_get_fd_for_texture(tex_id, &stride, &fourcc, &modifier);
if (fd < 0) {
fprintf(stderr, "%s: failed to get fd for texture\n", __func__);
return;
}
trace_qemu_spice_gl_scanout_texture(ssd->qxl.id, w, h, fourcc);
- /* note: spice server will close the fd */
- spice_qxl_gl_scanout(&ssd->qxl, fd, backing_width, backing_height,
- stride, fourcc, y_0_top);
- qemu_spice_gl_monitor_config(ssd, x, y, w, h);
+ if (remote_client && modifier != DRM_FORMAT_MOD_LINEAR) {
+ egl_fb_destroy(&ssd->guest_fb);
+ egl_fb_setup_for_tex(&ssd->guest_fb,
+ backing_width, backing_height,
+ tex_id, false);
+ ssd->backing_y_0_top = y_0_top;
+ ssd->blit_scanout_texture = true;
+ ssd->new_scanout_texture = true;
+ close(fd);
+ } else {
+ /* note: spice server will close the fd */
+ spice_qxl_gl_scanout(&ssd->qxl, fd, backing_width, backing_height,
+ stride, fourcc, y_0_top);
+ qemu_spice_gl_monitor_config(ssd, x, y, w, h);
+ }
+
ssd->have_surface = false;
ssd->have_scanout = true;
}
@@ -1114,6 +1128,41 @@ static void
qemu_spice_gl_release_dmabuf(DisplayChangeListener *dcl,
egl_dmabuf_release_texture(dmabuf);
}
+static bool spice_gl_blit_scanout_texture(SimpleSpiceDisplay *ssd)
+{
+ EGLint stride = 0, fourcc = 0;
+ int fd;
+
+ egl_fb_destroy(&ssd->blit_fb);
+ egl_fb_setup_for_tex(&ssd->blit_fb,
+ surface_width(ssd->ds), surface_height(ssd->ds),
+ ssd->ds->texture, false);
+ egl_fb_blit(&ssd->blit_fb, &ssd->guest_fb, false);
+ glFlush();
+
+ if (!ssd->new_scanout_texture) {
+ return true;
+ }
+
+ fd = egl_get_fd_for_texture(ssd->ds->texture,
+ &stride, &fourcc,
+ NULL);
+ if (fd < 0) {
+ fprintf(stderr, "%s: failed to get fd for texture\n", __func__);
+ return false;
+ }
+
+ spice_qxl_gl_scanout(&ssd->qxl, fd,
+ surface_width(ssd->ds),
+ surface_height(ssd->ds),
+ stride, fourcc, ssd->backing_y_0_top);
+ qemu_spice_gl_monitor_config(ssd, 0, 0,
+ surface_width(ssd->ds),
+ surface_height(ssd->ds));
+ ssd->new_scanout_texture = false;
+ return true;
+}
+
static void qemu_spice_gl_update(DisplayChangeListener *dcl,
uint32_t x, uint32_t y, uint32_t w, uint32_t
h)
{
@@ -1121,6 +1170,7 @@ static void qemu_spice_gl_update(DisplayChangeListener
*dcl,
EGLint stride = 0, fourcc = 0;
bool render_cursor = false;
bool y_0_top = false; /* FIXME */
+ bool ret;
int fd;
uint32_t width, height, texture;
@@ -1195,6 +1245,13 @@ static void qemu_spice_gl_update(DisplayChangeListener
*dcl,
glFlush();
}
+ if (remote_client && ssd->blit_scanout_texture) {
+ ret = spice_gl_blit_scanout_texture(ssd);
+ if (!ret) {
+ return;
+ }
+ }
+
trace_qemu_spice_gl_update(ssd->qxl.id, w, h, x, y);
qemu_spice_gl_block(ssd, true);
glFlush();
--
2.49.0
